--- CMakeLists.txt.orig	2023-04-12 14:19:36 UTC
+++ CMakeLists.txt
@@ -6,6 +6,8 @@ SET_PROPERTY (GLOBAL PROPERTY CMAKE_ROLE "PROJECT")
 endif()
 set(CMAKE_VERBOSE_MAKEFILE ON)
 
+include(CheckCXXCompilerFlag)
+
 option(USE_INSTALLED_HEPMC3 "Use HepMC3 bindings as a standalone package" OFF)
 option(RERUN_BINDER "Rerun binder" OFF)
 if (USE_INSTALLED_HEPMC3)
@@ -314,9 +316,9 @@ if (${ver} STREQUAL 2)
   unset(_Python2_EXECUTABLE CACHE) # Attempt to make FindPython reenterant
   unset(_Python2_INCLUDE_DIR CACHE) # Attempt to make FindPython reenterant
   if (${verminor} STREQUAL X)
-    find_package (Python2 ${ver} COMPONENTS  Interpreter Development.Module)
+    find_package (xPython2 ${ver} COMPONENTS  Interpreter Development.Module)
   else()
-    find_package (Python2 ${ver}.${verminor} EXACT COMPONENTS  Interpreter Development.Module)
+    find_package (xPython2 ${ver}.${verminor} EXACT COMPONENTS  Interpreter Development.Module)
   endif()
   if (Python2_VERSION AND Python2_INCLUDE_DIRS AND Python2_EXECUTABLE  ) #something is set
     SET( Python_VERSION       ${Python2_VERSION})
@@ -336,7 +338,7 @@ if (${ver} STREQUAL 3)
   unset(Python3_FOUND CACHE)
   unset(Python3_VERSION CACHE)
   unset(Python3_Interpreter_FOUND CACHE)
-  unset(Python3_EXECUTABLE CACHE)
+  #unset(Python3_EXECUTABLE CACHE)
   unset(Python3_INCLUDE_DIR CACHE)
   unset(Python3_INCLUDE_DIRS CACHE)
   unset(Python3_LIBRARIES CACHE)